At first glance, ackie monitor humidity appears to be nonexistent — after all, they live in an incredibly dry environment. Their habitat is sandy soil, with lots of rocks, and the main form of vegetation is drought-resistant spinifex grass. However, there’s more moisture there than you’d think.
According to a collection of relative humidity readings from confirmed ackie territory (Alice Springs, Northern Territory, Australia) in 2020 recorded by TimeandDate.com, relative humidity levels can be anywhere between 6-100%, depending on the season, weather, and time of day. However, if you take an average of the daily highs and lows, you get a year-round average of 22-38% during the day, and 30-47% during the night. That’s not quite so dry, is it?
Using this data, ReptiFiles recommends average ambient humidity levels between 20-50% for ackie monitors. Occasional dips lower or spikes higher than this range are unlikely to be harmful.
Track your ambient humidity levels with a device like the Exo Terra Digital Hygrometer, with the probe placed in the middle of the enclosure. Alternatively, you can use a high-quality wall-mounted digital hygrometer, such as the Govee Smart Temperature and Humidity Monitor, placed within 12″ of the ground, in the middle of the enclosure.